sound/soc/codecs/twl6040.c

   1 /*
   2  * ALSA SoC TWL6040 codec driver
   3  *
   4  * Author:       Misael Lopez Cruz <x0052729@ti.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/moduleparam.h>
  24 #include <linux/init.h>
  25 #include <linux/delay.h>
  26 #include <linux/pm.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/slab.h>
  29 #include <linux/i2c/twl.h>
  30 #include <linux/mfd/twl6040.h>
  31
  32 #include <sound/core.h>
  33 #include <sound/pcm.h>
  34 #include <sound/pcm_params.h>
  35 #include <sound/soc.h>
  36 #include <sound/initval.h>
  37 #include <sound/tlv.h>
  38
  39 #include "twl6040.h"
  40
  41 #define TWL6040_RATES           SNDRV_PCM_RATE_8000_96000
  42 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
  43
  44 #define TWL6040_OUTHS_0dB 0x00
  45 #define TWL6040_OUTHS_M30dB 0x0F
  46 #define TWL6040_OUTHF_0dB 0x03
  47 #define TWL6040_OUTHF_M52dB 0x1D
  48
  49 #define TWL6040_RAMP_NONE       0
  50 #define TWL6040_RAMP_UP         1
  51 #define TWL6040_RAMP_DOWN       2
  52
  53 #define TWL6040_HSL_VOL_MASK    0x0F
  54 #define TWL6040_HSL_VOL_SHIFT   0
  55 #define TWL6040_HSR_VOL_MASK    0xF0
  56 #define TWL6040_HSR_VOL_SHIFT   4
  57 #define TWL6040_HF_VOL_MASK     0x1F
  58 #define TWL6040_HF_VOL_SHIFT    0
  59
  60 struct twl6040_output {
  61         u16 active;
  62         u16 left_vol;
  63         u16 right_vol;
  64         u16 left_step;
  65         u16 right_step;
  66         unsigned int step_delay;
  67         u16 ramp;
  68         u16 mute;
  69         struct completion ramp_done;
  70 };
  71
  72 struct twl6040_jack_data {
  73         struct snd_soc_jack *jack;
  74         int report;
  75 };
  76
  77 /* codec private data */
  78 struct twl6040_data {
  79         int plug_irq;
  80         int codec_powered;
  81         int pll;
  82         int non_lp;
  83         int pll_power_mode;
  84         int hs_power_mode;
  85         int hs_power_mode_locked;
  86         unsigned int clk_in;
  87         unsigned int sysclk;
  88         u16 hs_left_step;
  89         u16 hs_right_step;
  90         u16 hf_left_step;
  91         u16 hf_right_step;
  92         struct twl6040_jack_data hs_jack;
  93         struct snd_soc_codec *codec;
  94         struct workqueue_struct *workqueue;
  95         struct delayed_work delayed_work;
  96         struct mutex mutex;
  97         struct twl6040_output headset;
  98         struct twl6040_output handsfree;
  99         struct workqueue_struct *hf_workqueue;
 100         struct workqueue_struct *hs_workqueue;
 101         struct delayed_work hs_delayed_work;
 102         struct delayed_work hf_delayed_work;
 103 };
 104
 105 /*
 106  * twl6040 register cache & default register settings
 107  */
 108 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
 109         0x00, /* not used               0x00    */
 110         0x4B, /* TWL6040_ASICID (ro)    0x01    */
 111         0x00, /* TWL6040_ASICREV (ro)   0x02    */
 112         0x00, /* TWL6040_INTID          0x03    */
 113         0x00, /* TWL6040_INTMR          0x04    */
 114         0x00, /* TWL6040_NCPCTRL        0x05    */
 115         0x00, /* TWL6040_LDOCTL         0x06    */
 116         0x60, /* TWL6040_HPPLLCTL       0x07    */
 117         0x00, /* TWL6040_LPPLLCTL       0x08    */
 118         0x4A, /* TWL6040_LPPLLDIV       0x09    */
 119         0x00, /* TWL6040_AMICBCTL       0x0A    */
 120         0x00, /* TWL6040_DMICBCTL       0x0B    */
 121         0x18, /* TWL6040_MICLCTL        0x0C    - No input selected on Left Mic */
 122         0x18, /* TWL6040_MICRCTL        0x0D    - No input selected on Right Mic */
 123         0x00, /* TWL6040_MICGAIN        0x0E    */
 124         0x1B, /* TWL6040_LINEGAIN       0x0F    */
 125         0x00, /* TWL6040_HSLCTL         0x10    */
 126         0x00, /* TWL6040_HSRCTL         0x11    */
 127         0x00, /* TWL6040_HSGAIN         0x12    */
 128         0x00, /* TWL6040_EARCTL         0x13    */
 129         0x00, /* TWL6040_HFLCTL         0x14    */
 130         0x00, /* TWL6040_HFLGAIN        0x15    */
 131         0x00, /* TWL6040_HFRCTL         0x16    */
 132         0x00, /* TWL6040_HFRGAIN        0x17    */
 133         0x00, /* TWL6040_VIBCTLL        0x18    */
 134         0x00, /* TWL6040_VIBDATL        0x19    */
 135         0x00, /* TWL6040_VIBCTLR        0x1A    */
 136         0x00, /* TWL6040_VIBDATR        0x1B    */
 137         0x00, /* TWL6040_HKCTL1         0x1C    */
 138         0x00, /* TWL6040_HKCTL2         0x1D    */
 139         0x00, /* TWL6040_GPOCTL         0x1E    */
 140         0x00, /* TWL6040_ALB            0x1F    */
 141         0x00, /* TWL6040_DLB            0x20    */
 142         0x00, /* not used               0x21    */
 143         0x00, /* not used               0x22    */
 144         0x00, /* not used               0x23    */
 145         0x00, /* not used               0x24    */
 146         0x00, /* not used               0x25    */
 147         0x00, /* not used               0x26    */
 148         0x00, /* not used               0x27    */
 149         0x00, /* TWL6040_TRIM1          0x28    */
 150         0x00, /* TWL6040_TRIM2          0x29    */
 151         0x00, /* TWL6040_TRIM3          0x2A    */
 152         0x00, /* TWL6040_HSOTRIM        0x2B    */
 153         0x00, /* TWL6040_HFOTRIM        0x2C    */
 154         0x09, /* TWL6040_ACCCTL         0x2D    */
 155         0x00, /* TWL6040_STATUS (ro)    0x2E    */
 156 };
 157
 158 /* List of registers to be restored after power up */
 159 static const int twl6040_restore_list[] = {
 160         TWL6040_REG_MICLCTL,
 161         TWL6040_REG_MICRCTL,
 162         TWL6040_REG_MICGAIN,
 163         TWL6040_REG_LINEGAIN,
 164         TWL6040_REG_HSLCTL,
 165         TWL6040_REG_HSRCTL,
 166         TWL6040_REG_HSGAIN,
 167         TWL6040_REG_EARCTL,
 168         TWL6040_REG_HFLCTL,
 169         TWL6040_REG_HFLGAIN,
 170         TWL6040_REG_HFRCTL,
 171         TWL6040_REG_HFRGAIN,
 172 };
 173
 174 /* set of rates for each pll: low-power and high-performance */
 175 static unsigned int lp_rates[] = {
 176         8000,
 177         11250,
 178         16000,
 179         22500,
 180         32000,
 181         44100,
 182         48000,
 183         88200,
 184         96000,
 185 };
 186
 187 static unsigned int hp_rates[] = {
 188         8000,
 189         16000,
 190         32000,
 191         48000,
 192         96000,
 193 };
 194
 195 static struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
 196         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
 197         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
 198 };
 199
 200 /*
 201  * read twl6040 register cache
 202  */
 203 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
 204                                                 unsigned int reg)
 205 {
 206         u8 *cache = codec->reg_cache;
 207
 208         if (reg >= TWL6040_CACHEREGNUM)
 209                 return -EIO;
 210
 211         return cache[reg];
 212 }
 213
 214 /*
 215  * write twl6040 register cache
 216  */
 217 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
 218                                                 u8 reg, u8 value)
 219 {
 220         u8 *cache = codec->reg_cache;
 221
 222         if (reg >= TWL6040_CACHEREGNUM)
 223                 return;
 224         cache[reg] = value;
 225 }
 226
 227 /*
 228  * read from twl6040 hardware register
 229  */
 230 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
 231                         unsigned int reg)
 232 {
 233         struct twl6040 *twl6040 = codec->control_data;
 234         u8 value;
 235
 236         if (reg >= TWL6040_CACHEREGNUM)
 237                 return -EIO;
 238
 239         value = twl6040_reg_read(twl6040, reg);
 240         twl6040_write_reg_cache(codec, reg, value);
 241
 242         return value;
 243 }
 244
 245 /*
 246  * write to the twl6040 register space
 247  */
 248 static int twl6040_write(struct snd_soc_codec *codec,
 249                         unsigned int reg, unsigned int value)
 250 {
 251         struct twl6040 *twl6040 = codec->control_data;
 252
 253         if (reg >= TWL6040_CACHEREGNUM)
 254                 return -EIO;
 255
 256         twl6040_write_reg_cache(codec, reg, value);
 257         return twl6040_reg_write(twl6040, reg, value);
 258 }
 259
 260 static void twl6040_init_chip(struct snd_soc_codec *codec)
 261 {
 262         struct twl6040 *twl6040 = codec->control_data;
 263         u8 val;
 264
 265         val = twl6040_get_revid(twl6040);
 266         twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
 267
 268 }
 269
 270 static void twl6040_restore_regs(struct snd_soc_codec *codec)
 271 {
 272         u8 *cache = codec->reg_cache;
 273         int reg, i;
 274
 275         for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) {
 276                 reg = twl6040_restore_list[i];
 277                 twl6040_write(codec, reg, cache[reg]);
 278         }
 279 }
 280
 281 /*
 282  * Ramp HS PGA volume to minimise pops at stream startup and shutdown.
 283  */
 284 static inline int twl6040_hs_ramp_step(struct snd_soc_codec *codec,
 285                         unsigned int left_step, unsigned int right_step)
 286 {
 287
 288         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 289         struct twl6040_output *headset = &priv->headset;
 290         int left_complete = 0, right_complete = 0;
 291         u8 reg, val;
 292
 293         /* left channel */
 294         left_step = (left_step > 0xF) ? 0xF : left_step;
 295         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
 296         val = (~reg & TWL6040_HSL_VOL_MASK);
 297
 298         if (headset->ramp == TWL6040_RAMP_UP) {
 299                 /* ramp step up */
 300                 if (val < headset->left_vol) {
 301                         if (val + left_step > headset->left_vol)
 302                                 val = headset->left_vol;
 303                         else
 304                                 val += left_step;
 305
 306                         reg &= ~TWL6040_HSL_VOL_MASK;
 307                         twl6040_write(codec, TWL6040_REG_HSGAIN,
 308                                         (reg | (~val & TWL6040_HSL_VOL_MASK)));
 309                 } else {
 310                         left_complete = 1;
 311                 }
 312         } else if (headset->ramp == TWL6040_RAMP_DOWN) {
 313                 /* ramp step down */
 314                 if (val > 0x0) {
 315                         if ((int)val - (int)left_step < 0)
 316                                 val = 0;
 317                         else
 318                                 val -= left_step;
 319
 320                         reg &= ~TWL6040_HSL_VOL_MASK;
 321                         twl6040_write(codec, TWL6040_REG_HSGAIN, reg |
 322                                                 (~val & TWL6040_HSL_VOL_MASK));
 323                 } else {
 324                         left_complete = 1;
 325                 }
 326         }
 327
 328         /* right channel */
 329         right_step = (right_step > 0xF) ? 0xF : right_step;
 330         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
 331         val = (~reg & TWL6040_HSR_VOL_MASK) >> TWL6040_HSR_VOL_SHIFT;
 332
 333         if (headset->ramp == TWL6040_RAMP_UP) {
 334                 /* ramp step up */
 335                 if (val < headset->right_vol) {
 336                         if (val + right_step > headset->right_vol)
 337                                 val = headset->right_vol;
 338                         else
 339                                 val += right_step;
 340
 341                         reg &= ~TWL6040_HSR_VOL_MASK;
 342                         twl6040_write(codec, TWL6040_REG_HSGAIN,
 343                                 (reg | (~val << TWL6040_HSR_VOL_SHIFT)));
 344                 } else {
 345                         right_complete = 1;
 346                 }
 347         } else if (headset->ramp == TWL6040_RAMP_DOWN) {
 348                 /* ramp step down */
 349                 if (val > 0x0) {
 350                         if ((int)val - (int)right_step < 0)
 351                                 val = 0;
 352                         else
 353                                 val -= right_step;
 354
 355                         reg &= ~TWL6040_HSR_VOL_MASK;
 356                         twl6040_write(codec, TWL6040_REG_HSGAIN,
 357                                          reg | (~val << TWL6040_HSR_VOL_SHIFT));
 358                 } else {
 359                         right_complete = 1;
 360                 }
 361         }
 362
 363         return left_complete & right_complete;
 364 }
 365
 366 /*
 367  * Ramp HF PGA volume to minimise pops at stream startup and shutdown.
 368  */
 369 static inline int twl6040_hf_ramp_step(struct snd_soc_codec *codec,
 370                         unsigned int left_step, unsigned int right_step)
 371 {
 372         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 373         struct twl6040_output *handsfree = &priv->handsfree;
 374         int left_complete = 0, right_complete = 0;
 375         u16 reg, val;
 376
 377         /* left channel */
 378         left_step = (left_step > 0x1D) ? 0x1D : left_step;
 379         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFLGAIN);
 380         reg = 0x1D - reg;
 381         val = (reg & TWL6040_HF_VOL_MASK);
 382         if (handsfree->ramp == TWL6040_RAMP_UP) {
 383                 /* ramp step up */
 384                 if (val < handsfree->left_vol) {
 385                         if (val + left_step > handsfree->left_vol)
 386                                 val = handsfree->left_vol;
 387                         else
 388                                 val += left_step;
 389
 390                         reg &= ~TWL6040_HF_VOL_MASK;
 391                         twl6040_write(codec, TWL6040_REG_HFLGAIN,
 392                                                 reg | (0x1D - val));
 393                 } else {
 394                         left_complete = 1;
 395                 }
 396         } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
 397                 /* ramp step down */
 398                 if (val > 0) {
 399                         if ((int)val - (int)left_step < 0)
 400                                 val = 0;
 401                         else
 402                                 val -= left_step;
 403
 404                         reg &= ~TWL6040_HF_VOL_MASK;
 405                         twl6040_write(codec, TWL6040_REG_HFLGAIN,
 406                                                 reg | (0x1D - val));
 407                 } else {
 408                         left_complete = 1;
 409                 }
 410         }
 411
 412         /* right channel */
 413         right_step = (right_step > 0x1D) ? 0x1D : right_step;
 414         reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFRGAIN);
 415         reg = 0x1D - reg;
 416         val = (reg & TWL6040_HF_VOL_MASK);
 417         if (handsfree->ramp == TWL6040_RAMP_UP) {
 418                 /* ramp step up */
 419                 if (val < handsfree->right_vol) {
 420                         if (val + right_step > handsfree->right_vol)
 421                                 val = handsfree->right_vol;
 422                         else
 423                                 val += right_step;
 424
 425                         reg &= ~TWL6040_HF_VOL_MASK;
 426                         twl6040_write(codec, TWL6040_REG_HFRGAIN,
 427                                                 reg | (0x1D - val));
 428                 } else {
 429                         right_complete = 1;
 430                 }
 431         } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
 432                 /* ramp step down */
 433                 if (val > 0) {
 434                         if ((int)val - (int)right_step < 0)
 435                                 val = 0;
 436                         else
 437                                 val -= right_step;
 438
 439                         reg &= ~TWL6040_HF_VOL_MASK;
 440                         twl6040_write(codec, TWL6040_REG_HFRGAIN,
 441                                                 reg | (0x1D - val));
 442                 }
 443         }
 444
 445         return left_complete & right_complete;
 446 }
 447
 448 /*
 449  * This work ramps both output PGAs at stream start/stop time to
 450  * minimise pop associated with DAPM power switching.
 451  */
 452 static void twl6040_pga_hs_work(struct work_struct *work)
 453 {
 454         struct twl6040_data *priv =
 455                 container_of(work, struct twl6040_data, hs_delayed_work.work);
 456         struct snd_soc_codec *codec = priv->codec;
 457         struct twl6040_output *headset = &priv->headset;
 458         unsigned int delay = headset->step_delay;
 459         int i, headset_complete;
 460
 461         /* do we need to ramp at all ? */
 462         if (headset->ramp == TWL6040_RAMP_NONE)
 463                 return;
 464
 465         /* HS PGA volumes have 4 bits of resolution to ramp */
 466         for (i = 0; i <= 16; i++) {
 467                 headset_complete = twl6040_hs_ramp_step(codec,
 468                                                 headset->left_step,
 469                                                 headset->right_step);
 470
 471                 /* ramp finished ? */
 472                 if (headset_complete)
 473                         break;
 474
 475                 /*
 476                  * TODO: tune: delay is longer over 0dB
 477                  * as increases are larger.
 478                  */
 479                 if (i >= 8)
 480                         schedule_timeout_interruptible(msecs_to_jiffies(delay +
 481                                                         (delay >> 1)));
 482                 else
 483                         schedule_timeout_interruptible(msecs_to_jiffies(delay));
 484         }
 485
 486         if (headset->ramp == TWL6040_RAMP_DOWN) {
 487                 headset->active = 0;
 488                 complete(&headset->ramp_done);
 489         } else {
 490                 headset->active = 1;
 491         }
 492         headset->ramp = TWL6040_RAMP_NONE;
 493 }
 494
 495 static void twl6040_pga_hf_work(struct work_struct *work)
 496 {
 497         struct twl6040_data *priv =
 498                 container_of(work, struct twl6040_data, hf_delayed_work.work);
 499         struct snd_soc_codec *codec = priv->codec;
 500         struct twl6040_output *handsfree = &priv->handsfree;
 501         unsigned int delay = handsfree->step_delay;
 502         int i, handsfree_complete;
 503
 504         /* do we need to ramp at all ? */
 505         if (handsfree->ramp == TWL6040_RAMP_NONE)
 506                 return;
 507
 508         /* HF PGA volumes have 5 bits of resolution to ramp */
 509         for (i = 0; i <= 32; i++) {
 510                 handsfree_complete = twl6040_hf_ramp_step(codec,
 511                                                 handsfree->left_step,
 512                                                 handsfree->right_step);
 513
 514                 /* ramp finished ? */
 515                 if (handsfree_complete)
 516                         break;
 517
 518                 /*
 519                  * TODO: tune: delay is longer over 0dB
 520                  * as increases are larger.
 521                  */
 522                 if (i >= 16)
 523                         schedule_timeout_interruptible(msecs_to_jiffies(delay +
 524                                                        (delay >> 1)));
 525                 else
 526                         schedule_timeout_interruptible(msecs_to_jiffies(delay));
 527         }
 528
 529
 530         if (handsfree->ramp == TWL6040_RAMP_DOWN) {
 531                 handsfree->active = 0;
 532                 complete(&handsfree->ramp_done);
 533         } else
 534                 handsfree->active = 1;
 535         handsfree->ramp = TWL6040_RAMP_NONE;
 536 }
 537
 538 static int pga_event(struct snd_soc_dapm_widget *w,
 539                         struct snd_kcontrol *kcontrol, int event)
 540 {
 541         struct snd_soc_codec *codec = w->codec;
 542         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 543         struct twl6040_output *out;
 544         struct delayed_work *work;
 545         struct workqueue_struct *queue;
 546
 547         switch (w->shift) {
 548         case 2:
 549         case 3:
 550                 out = &priv->headset;
 551                 work = &priv->hs_delayed_work;
 552                 queue = priv->hs_workqueue;
 553                 out->left_step = priv->hs_left_step;
 554                 out->right_step = priv->hs_right_step;
 555                 out->step_delay = 5;    /* 5 ms between volume ramp steps */
 556                 break;
 557         case 4:
 558                 out = &priv->handsfree;
 559                 work = &priv->hf_delayed_work;
 560                 queue = priv->hf_workqueue;
 561                 out->left_step = priv->hf_left_step;
 562                 out->right_step = priv->hf_right_step;
 563                 out->step_delay = 5;    /* 5 ms between volume ramp steps */
 564                 if (SND_SOC_DAPM_EVENT_ON(event))
 565                         priv->non_lp++;
 566                 else
 567                         priv->non_lp--;
 568                 break;
 569         default:
 570                 return -1;
 571         }
 572
 573         switch (event) {
 574         case SND_SOC_DAPM_POST_PMU:
 575                 if (out->active)
 576                         break;
 577
 578                 /* don't use volume ramp for power-up */
 579                 out->left_step = out->left_vol;
 580                 out->right_step = out->right_vol;
 581
 582                 if (!delayed_work_pending(work)) {
 583                         out->ramp = TWL6040_RAMP_UP;
 584                         queue_delayed_work(queue, work,
 585                                         msecs_to_jiffies(1));
 586                 }
 587                 break;
 588
 589         case SND_SOC_DAPM_PRE_PMD:
 590                 if (!out->active)
 591                         break;
 592
 593                 if (!delayed_work_pending(work)) {
 594                         /* use volume ramp for power-down */
 595                         out->ramp = TWL6040_RAMP_DOWN;
 596                         INIT_COMPLETION(out->ramp_done);
 597
 598                         queue_delayed_work(queue, work,
 599                                         msecs_to_jiffies(1));
 600
 601                         wait_for_completion_timeout(&out->ramp_done,
 602                                         msecs_to_jiffies(2000));
 603                 }
 604                 break;
 605         }
 606
 607         return 0;
 608 }
 609
 610 /* set headset dac and driver power mode */
 611 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
 612 {
 613         int hslctl, hsrctl;
 614         int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
 615
 616         hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
 617         hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
 618
 619         if (high_perf) {
 620                 hslctl &= ~mask;
 621                 hsrctl &= ~mask;
 622         } else {
 623                 hslctl |= mask;
 624                 hsrctl |= mask;
 625         }
 626
 627         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
 628         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
 629
 630         return 0;
 631 }
 632
 633 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
 634                         struct snd_kcontrol *kcontrol, int event)
 635 {
 636         msleep(1);
 637         return 0;
 638 }
 639
 640 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
 641                         struct snd_kcontrol *kcontrol, int event)
 642 {
 643         struct snd_soc_codec *codec = w->codec;
 644         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 645         int ret = 0;
 646
 647         if (SND_SOC_DAPM_EVENT_ON(event)) {
 648                 priv->non_lp++;
 649                 if (!strcmp(w->name, "Earphone Driver")) {
 650                         /* Earphone doesn't support low power mode */
 651                         priv->hs_power_mode_locked = 1;
 652                         ret = headset_power_mode(codec, 1);
 653                 }
 654         } else {
 655                 priv->non_lp--;
 656                 if (!strcmp(w->name, "Earphone Driver")) {
 657                         priv->hs_power_mode_locked = 0;
 658                         ret = headset_power_mode(codec, priv->hs_power_mode);
 659                 }
 660         }
 661
 662         msleep(1);
 663
 664         return ret;
 665 }
 666
 667 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
 668                                    struct snd_soc_jack *jack, int report)
 669 {
 670         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 671         int status;
 672
 673         mutex_lock(&priv->mutex);
 674
 675         /* Sync status */
 676         status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
 677         if (status & TWL6040_PLUGCOMP)
 678                 snd_soc_jack_report(jack, report, report);
 679         else
 680                 snd_soc_jack_report(jack, 0, report);
 681
 682         mutex_unlock(&priv->mutex);
 683 }
 684
 685 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
 686                                 struct snd_soc_jack *jack, int report)
 687 {
 688         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 689         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 690
 691         hs_jack->jack = jack;
 692         hs_jack->report = report;
 693
 694         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 695 }
 696 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
 697
 698 static void twl6040_accessory_work(struct work_struct *work)
 699 {
 700         struct twl6040_data *priv = container_of(work,
 701                                         struct twl6040_data, delayed_work.work);
 702         struct snd_soc_codec *codec = priv->codec;
 703         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
 704
 705         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
 706 }
 707
 708 /* audio interrupt handler */
 709 static irqreturn_t twl6040_audio_handler(int irq, void *data)
 710 {
 711         struct snd_soc_codec *codec = data;
 712         struct twl6040 *twl6040 = codec->control_data;
 713         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 714         u8 intid;
 715
 716         intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
 717
 718         if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT))
 719                 queue_delayed_work(priv->workqueue, &priv->delayed_work,
 720                                                         msecs_to_jiffies(200));
 721
 722         return IRQ_HANDLED;
 723 }
 724
 725 static int twl6040_put_volsw(struct snd_kcontrol *kcontrol,
 726                                   struct snd_ctl_elem_value *ucontrol)
 727 {
 728         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 729         struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
 730         struct twl6040_output *out = NULL;
 731         struct soc_mixer_control *mc =
 732                 (struct soc_mixer_control *)kcontrol->private_value;
 733         int ret;
 734         unsigned int reg = mc->reg;
 735
 736         /* For HS and HF we shadow the values and only actually write
 737          * them out when active in order to ensure the amplifier comes on
 738          * as quietly as possible. */
 739         switch (reg) {
 740         case TWL6040_REG_HSGAIN:
 741                 out = &twl6040_priv->headset;
 742                 break;
 743         default:
 744                 break;
 745         }
 746
 747         if (out) {
 748                 out->left_vol = ucontrol->value.integer.value[0];
 749                 out->right_vol = ucontrol->value.integer.value[1];
 750                 if (!out->active)
 751                         return 1;
 752         }
 753
 754         ret = snd_soc_put_volsw(kcontrol, ucontrol);
 755         if (ret < 0)
 756                 return ret;
 757
 758         return 1;
 759 }
 760
 761 static int twl6040_get_volsw(struct snd_kcontrol *kcontrol,
 762                                 struct snd_ctl_elem_value *ucontrol)
 763 {
 764         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 765         struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
 766         struct twl6040_output *out = &twl6040_priv->headset;
 767         struct soc_mixer_control *mc =
 768                 (struct soc_mixer_control *)kcontrol->private_value;
 769         unsigned int reg = mc->reg;
 770
 771         switch (reg) {
 772         case TWL6040_REG_HSGAIN:
 773                 out = &twl6040_priv->headset;
 774                 ucontrol->value.integer.value[0] = out->left_vol;
 775                 ucontrol->value.integer.value[1] = out->right_vol;
 776                 return 0;
 777
 778         default:
 779                 break;
 780         }
 781
 782         return snd_soc_get_volsw(kcontrol, ucontrol);
 783 }
 784
 785 static int twl6040_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
 786                                   struct snd_ctl_elem_value *ucontrol)
 787 {
 788         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 789         struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
 790         struct twl6040_output *out = NULL;
 791         struct soc_mixer_control *mc =
 792                 (struct soc_mixer_control *)kcontrol->private_value;
 793         int ret;
 794         unsigned int reg = mc->reg;
 795
 796         /* For HS and HF we shadow the values and only actually write
 797          * them out when active in order to ensure the amplifier comes on
 798          * as quietly as possible. */
 799         switch (reg) {
 800         case TWL6040_REG_HFLGAIN:
 801         case TWL6040_REG_HFRGAIN:
 802                 out = &twl6040_priv->handsfree;
 803                 break;
 804         default:
 805                 break;
 806         }
 807
 808         if (out) {
 809                 out->left_vol = ucontrol->value.integer.value[0];
 810                 out->right_vol = ucontrol->value.integer.value[1];
 811                 if (!out->active)
 812                         return 1;
 813         }
 814
 815         ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
 816         if (ret < 0)
 817                 return ret;
 818
 819         return 1;
 820 }
 821
 822 static int twl6040_get_volsw_2r(struct snd_kcontrol *kcontrol,
 823                                 struct snd_ctl_elem_value *ucontrol)
 824 {
 825         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 826         struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
 827         struct twl6040_output *out = &twl6040_priv->handsfree;
 828         struct soc_mixer_control *mc =
 829                 (struct soc_mixer_control *)kcontrol->private_value;
 830         unsigned int reg = mc->reg;
 831
 832         /* If these are cached registers use the cache */
 833         switch (reg) {
 834         case TWL6040_REG_HFLGAIN:
 835         case TWL6040_REG_HFRGAIN:
 836                 out = &twl6040_priv->handsfree;
 837                 ucontrol->value.integer.value[0] = out->left_vol;
 838                 ucontrol->value.integer.value[1] = out->right_vol;
 839                 return 0;
 840
 841         default:
 842                 break;
 843         }
 844
 845         return snd_soc_get_volsw_2r(kcontrol, ucontrol);
 846 }
 847
 848 /* double control with volume update */
 849 #define SOC_TWL6040_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax,\
 850                                                         xinvert, tlv_array)\
 851 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 852         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 853                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 854         .tlv.p = (tlv_array), \
 855         .info = snd_soc_info_volsw, .get = twl6040_get_volsw, \
 856         .put = twl6040_put_volsw, \
 857         .private_value = (unsigned long)&(struct soc_mixer_control) \
 858                 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
 859                  .max = xmax, .platform_max = xmax, .invert = xinvert} }
 860
 861 /* double control with volume update */
 862 #define SOC_TWL6040_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax,\
 863                                 xinvert, tlv_array)\
 864 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 865         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 866                 SNDRV_CTL_ELEM_ACCESS_READWRITE | \
 867                 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
 868         .tlv.p = (tlv_array), \
 869         .info = snd_soc_info_volsw_2r, \
 870         .get = twl6040_get_volsw_2r, .put = twl6040_put_volsw_2r_vu, \
 871         .private_value = (unsigned long)&(struct soc_mixer_control) \
 872                 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
 873                  .rshift = xshift, .max = xmax, .invert = xinvert}, }
 874
 875 /*
 876  * MICATT volume control:
 877  * from -6 to 0 dB in 6 dB steps
 878  */
 879 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
 880
 881 /*
 882  * MICGAIN volume control:
 883  * from 6 to 30 dB in 6 dB steps
 884  */
 885 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
 886
 887 /*
 888  * AFMGAIN volume control:
 889  * from -18 to 24 dB in 6 dB steps
 890  */
 891 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
 892
 893 /*
 894  * HSGAIN volume control:
 895  * from -30 to 0 dB in 2 dB steps
 896  */
 897 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
 898
 899 /*
 900  * HFGAIN volume control:
 901  * from -52 to 6 dB in 2 dB steps
 902  */
 903 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
 904
 905 /*
 906  * EPGAIN volume control:
 907  * from -24 to 6 dB in 2 dB steps
 908  */
 909 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
 910
 911 /* Left analog microphone selection */
 912 static const char *twl6040_amicl_texts[] =
 913         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
 914
 915 /* Right analog microphone selection */
 916 static const char *twl6040_amicr_texts[] =
 917         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
 918
 919 static const struct soc_enum twl6040_enum[] = {
 920         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
 921         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
 922 };
 923
 924 static const char *twl6040_hs_texts[] = {
 925         "Off", "HS DAC", "Line-In amp"
 926 };
 927
 928 static const struct soc_enum twl6040_hs_enum[] = {
 929         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 930                         twl6040_hs_texts),
 931         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
 932                         twl6040_hs_texts),
 933 };
 934
 935 static const char *twl6040_hf_texts[] = {
 936         "Off", "HF DAC", "Line-In amp"
 937 };
 938
 939 static const struct soc_enum twl6040_hf_enum[] = {
 940         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 941                         twl6040_hf_texts),
 942         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
 943                         twl6040_hf_texts),
 944 };
 945
 946 static const struct snd_kcontrol_new amicl_control =
 947         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
 948
 949 static const struct snd_kcontrol_new amicr_control =
 950         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
 951
 952 /* Headset DAC playback switches */
 953 static const struct snd_kcontrol_new hsl_mux_controls =
 954         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
 955
 956 static const struct snd_kcontrol_new hsr_mux_controls =
 957         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
 958
 959 /* Handsfree DAC playback switches */
 960 static const struct snd_kcontrol_new hfl_mux_controls =
 961         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
 962
 963 static const struct snd_kcontrol_new hfr_mux_controls =
 964         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
 965
 966 static const struct snd_kcontrol_new ep_driver_switch_controls =
 967         SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
 968
 969 /* Headset power mode */
 970 static const char *twl6040_power_mode_texts[] = {
 971         "Low-Power", "High-Perfomance",
 972 };
 973
 974 static const struct soc_enum twl6040_power_mode_enum =
 975         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
 976                         twl6040_power_mode_texts);
 977
 978 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
 979         struct snd_ctl_elem_value *ucontrol)
 980 {
 981         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 982         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 983
 984         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
 985
 986         return 0;
 987 }
 988
 989 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
 990         struct snd_ctl_elem_value *ucontrol)
 991 {
 992         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 993         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 994         int high_perf = ucontrol->value.enumerated.item[0];
 995         int ret = 0;
 996
 997         if (!priv->hs_power_mode_locked)
 998                 ret = headset_power_mode(codec, high_perf);
 999
1000         if (!ret)
1001                 priv->hs_power_mode = high_perf;
1002
1003         return ret;
1004 }
1005
1006 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
1007         struct snd_ctl_elem_value *ucontrol)
1008 {
1009         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1010         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1011
1012         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
1013
1014         return 0;
1015 }
1016
1017 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
1018         struct snd_ctl_elem_value *ucontrol)
1019 {
1020         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1021         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1022
1023         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
1024
1025         return 0;
1026 }
1027
1028 int twl6040_get_clk_id(struct snd_soc_codec *codec)
1029 {
1030         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1031
1032         return priv->pll_power_mode;
1033 }
1034 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
1035
1036 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
1037         /* Capture gains */
1038         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
1039                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
1040         SOC_DOUBLE_TLV("Capture Volume",
1041                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
1042
1043         /* AFM gains */
1044         SOC_DOUBLE_TLV("Aux FM Volume",
1045                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
1046
1047         /* Playback gains */
1048         SOC_TWL6040_DOUBLE_TLV("Headset Playback Volume",
1049                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
1050         SOC_TWL6040_DOUBLE_R_TLV("Handsfree Playback Volume",
1051                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
1052         SOC_SINGLE_TLV("Earphone Playback Volume",
1053                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
1054
1055         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
1056                 twl6040_headset_power_get_enum,
1057                 twl6040_headset_power_put_enum),
1058
1059         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
1060                 twl6040_pll_get_enum, twl6040_pll_put_enum),
1061 };
1062
1063 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
1064         /* Inputs */
1065         SND_SOC_DAPM_INPUT("MAINMIC"),
1066         SND_SOC_DAPM_INPUT("HSMIC"),
1067         SND_SOC_DAPM_INPUT("SUBMIC"),
1068         SND_SOC_DAPM_INPUT("AFML"),
1069         SND_SOC_DAPM_INPUT("AFMR"),
1070
1071         /* Outputs */
1072         SND_SOC_DAPM_OUTPUT("HSOL"),
1073         SND_SOC_DAPM_OUTPUT("HSOR"),
1074         SND_SOC_DAPM_OUTPUT("HFL"),
1075         SND_SOC_DAPM_OUTPUT("HFR"),
1076         SND_SOC_DAPM_OUTPUT("EP"),
1077
1078         /* Analog input muxes for the capture amplifiers */
1079         SND_SOC_DAPM_MUX("Analog Left Capture Route",
1080                         SND_SOC_NOPM, 0, 0, &amicl_control),
1081         SND_SOC_DAPM_MUX("Analog Right Capture Route",
1082                         SND_SOC_NOPM, 0, 0, &amicr_control),
1083
1084         /* Analog capture PGAs */
1085         SND_SOC_DAPM_PGA("MicAmpL",
1086                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
1087         SND_SOC_DAPM_PGA("MicAmpR",
1088                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
1089
1090         /* Auxiliary FM PGAs */
1091         SND_SOC_DAPM_PGA("AFMAmpL",
1092                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
1093         SND_SOC_DAPM_PGA("AFMAmpR",
1094                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
1095
1096         /* ADCs */
1097         SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
1098                         TWL6040_REG_MICLCTL, 2, 0),
1099         SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
1100                         TWL6040_REG_MICRCTL, 2, 0),
1101
1102         /* Microphone bias */
1103         SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
1104                         TWL6040_REG_AMICBCTL, 0, 0),
1105         SND_SOC_DAPM_MICBIAS("Main Mic Bias",
1106                         TWL6040_REG_AMICBCTL, 4, 0),
1107         SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
1108                         TWL6040_REG_DMICBCTL, 0, 0),
1109         SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
1110                         TWL6040_REG_DMICBCTL, 4, 0),
1111
1112         /* DACs */
1113         SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
1114                         TWL6040_REG_HSLCTL, 0, 0,
1115                         twl6040_hs_dac_event,
1116                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1117         SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
1118                         TWL6040_REG_HSRCTL, 0, 0,
1119                         twl6040_hs_dac_event,
1120                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1121         SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
1122                         TWL6040_REG_HFLCTL, 0, 0,
1123                         twl6040_power_mode_event,
1124                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1125         SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
1126                         TWL6040_REG_HFRCTL, 0, 0,
1127                         twl6040_power_mode_event,
1128                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1129
1130         SND_SOC_DAPM_MUX("HF Left Playback",
1131                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
1132         SND_SOC_DAPM_MUX("HF Right Playback",
1133                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
1134         /* Analog playback Muxes */
1135         SND_SOC_DAPM_MUX("HS Left Playback",
1136                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
1137         SND_SOC_DAPM_MUX("HS Right Playback",
1138                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
1139
1140         /* Analog playback drivers */
1141         SND_SOC_DAPM_OUT_DRV_E("Handsfree Left Driver",
1142                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
1143                         pga_event,
1144                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1145         SND_SOC_DAPM_OUT_DRV_E("Handsfree Right Driver",
1146                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
1147                         pga_event,
1148                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1149         SND_SOC_DAPM_OUT_DRV_E("Headset Left Driver",
1150                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
1151                         pga_event,
1152                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1153         SND_SOC_DAPM_OUT_DRV_E("Headset Right Driver",
1154                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
1155                         pga_event,
1156                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1157         SND_SOC_DAPM_SWITCH_E("Earphone Driver",
1158                         SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
1159                         twl6040_power_mode_event,
1160                         SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1161
1162         /* Analog playback PGAs */
1163         SND_SOC_DAPM_PGA("HFDAC Left PGA",
1164                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
1165         SND_SOC_DAPM_PGA("HFDAC Right PGA",
1166                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
1167
1168 };
1169
1170 static const struct snd_soc_dapm_route intercon[] = {
1171         /* Capture path */
1172         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
1173         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
1174         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
1175
1176         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
1177         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
1178         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
1179
1180         {"MicAmpL", NULL, "Analog Left Capture Route"},
1181         {"MicAmpR", NULL, "Analog Right Capture Route"},
1182
1183         {"ADC Left", NULL, "MicAmpL"},
1184         {"ADC Right", NULL, "MicAmpR"},
1185
1186         /* AFM path */
1187         {"AFMAmpL", "NULL", "AFML"},
1188         {"AFMAmpR", "NULL", "AFMR"},
1189
1190         {"HS Left Playback", "HS DAC", "HSDAC Left"},
1191         {"HS Left Playback", "Line-In amp", "AFMAmpL"},
1192
1193         {"HS Right Playback", "HS DAC", "HSDAC Right"},
1194         {"HS Right Playback", "Line-In amp", "AFMAmpR"},
1195
1196         {"Headset Left Driver", "NULL", "HS Left Playback"},
1197         {"Headset Right Driver", "NULL", "HS Right Playback"},
1198
1199         {"HSOL", NULL, "Headset Left Driver"},
1200         {"HSOR", NULL, "Headset Right Driver"},
1201
1202         /* Earphone playback path */
1203         {"Earphone Driver", "Switch", "HSDAC Left"},
1204         {"EP", NULL, "Earphone Driver"},
1205
1206         {"HF Left Playback", "HF DAC", "HFDAC Left"},
1207         {"HF Left Playback", "Line-In amp", "AFMAmpL"},
1208
1209         {"HF Right Playback", "HF DAC", "HFDAC Right"},
1210         {"HF Right Playback", "Line-In amp", "AFMAmpR"},
1211
1212         {"HFDAC Left PGA", NULL, "HF Left Playback"},
1213         {"HFDAC Right PGA", NULL, "HF Right Playback"},
1214
1215         {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
1216         {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
1217
1218         {"HFL", NULL, "Handsfree Left Driver"},
1219         {"HFR", NULL, "Handsfree Right Driver"},
1220 };
1221
1222 static int twl6040_add_widgets(struct snd_soc_codec *codec)
1223 {
1224         struct snd_soc_dapm_context *dapm = &codec->dapm;
1225
1226         snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
1227                                  ARRAY_SIZE(twl6040_dapm_widgets));
1228         snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
1229         snd_soc_dapm_new_widgets(dapm);
1230
1231         return 0;
1232 }
1233
1234 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
1235                                 enum snd_soc_bias_level level)
1236 {
1237         struct twl6040 *twl6040 = codec->control_data;
1238         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1239         int ret;
1240
1241         switch (level) {
1242         case SND_SOC_BIAS_ON:
1243                 break;
1244         case SND_SOC_BIAS_PREPARE:
1245                 break;
1246         case SND_SOC_BIAS_STANDBY:
1247                 if (priv->codec_powered)
1248                         break;
1249
1250                 ret = twl6040_power(twl6040, 1);
1251                 if (ret)
1252                         return ret;
1253
1254                 priv->codec_powered = 1;
1255
1256                 twl6040_restore_regs(codec);
1257
1258                 /* Set external boost GPO */
1259                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
1260                 break;
1261         case SND_SOC_BIAS_OFF:
1262                 if (!priv->codec_powered)
1263                         break;
1264
1265                 twl6040_power(twl6040, 0);
1266                 priv->codec_powered = 0;
1267                 break;
1268         }
1269
1270         codec->dapm.bias_level = level;
1271
1272         return 0;
1273 }
1274
1275 static int twl6040_startup(struct snd_pcm_substream *substream,
1276                         struct snd_soc_dai *dai)
1277 {
1278         struct snd_soc_pcm_runtime *rtd = substream->private_data;
1279         struct snd_soc_codec *codec = rtd->codec;
1280         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1281
1282         snd_pcm_hw_constraint_list(substream->runtime, 0,
1283                                 SNDRV_PCM_HW_PARAM_RATE,
1284                                 &sysclk_constraints[priv->pll_power_mode]);
1285
1286         return 0;
1287 }
1288
1289 static int twl6040_hw_params(struct snd_pcm_substream *substream,
1290                         struct snd_pcm_hw_params *params,
1291                         struct snd_soc_dai *dai)
1292 {
1293         struct snd_soc_pcm_runtime *rtd = substream->private_data;
1294         struct snd_soc_codec *codec = rtd->codec;
1295         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1296         int rate;
1297
1298         rate = params_rate(params);
1299         switch (rate) {
1300         case 11250:
1301         case 22500:
1302         case 44100:
1303         case 88200:
1304                 /* These rates are not supported when HPPLL is in use */
1305                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
1306                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
1307                                 rate);
1308                         return -EINVAL;
1309                 }
1310                 /* Capture is not supported with 17.64MHz sysclk */
1311                 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
1312                         dev_err(codec->dev,
1313                                 "capture mode is not supported at %dHz\n",
1314                                 rate);
1315                         return -EINVAL;
1316                 }
1317                 priv->sysclk = 17640000;
1318                 break;
1319         case 8000:
1320         case 16000:
1321         case 32000:
1322         case 48000:
1323         case 96000:
1324                 priv->sysclk = 19200000;
1325                 break;
1326         default:
1327                 dev_err(codec->dev, "unsupported rate %d\n", rate);
1328                 return -EINVAL;
1329         }
1330
1331         return 0;
1332 }
1333
1334 static int twl6040_prepare(struct snd_pcm_substream *substream,
1335                         struct snd_soc_dai *dai)
1336 {
1337         struct snd_soc_pcm_runtime *rtd = substream->private_data;
1338         struct snd_soc_codec *codec = rtd->codec;
1339         struct twl6040 *twl6040 = codec->control_data;
1340         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1341         int ret;
1342
1343         if (!priv->sysclk) {
1344                 dev_err(codec->dev,
1345                         "no mclk configured, call set_sysclk() on init\n");
1346                 return -EINVAL;
1347         }
1348
1349         if ((priv->sysclk == 17640000) && priv->non_lp) {
1350                         dev_err(codec->dev,
1351                                 "some enabled paths aren't supported at %dHz\n",
1352                                 priv->sysclk);
1353                         return -EPERM;
1354         }
1355
1356         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
1357         if (ret) {
1358                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
1359                 return -EPERM;
1360         }
1361
1362         return 0;
1363 }
1364
1365 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1366                 int clk_id, unsigned int freq, int dir)
1367 {
1368         struct snd_soc_codec *codec = codec_dai->codec;
1369         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1370
1371         switch (clk_id) {
1372         case TWL6040_SYSCLK_SEL_LPPLL:
1373         case TWL6040_SYSCLK_SEL_HPPLL:
1374                 priv->pll = clk_id;
1375                 priv->clk_in = freq;
1376                 break;
1377         default:
1378                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1379                 return -EINVAL;
1380         }
1381
1382         return 0;
1383 }
1384
1385 static struct snd_soc_dai_ops twl6040_dai_ops = {
1386         .startup        = twl6040_startup,
1387         .hw_params      = twl6040_hw_params,
1388         .prepare        = twl6040_prepare,
1389         .set_sysclk     = twl6040_set_dai_sysclk,
1390 };
1391
1392 static struct snd_soc_dai_driver twl6040_dai[] = {
1393 {
1394         .name = "twl6040-hifi",
1395         .playback = {
1396                 .stream_name = "Playback",
1397                 .channels_min = 1,
1398                 .channels_max = 2,
1399                 .rates = TWL6040_RATES,
1400                 .formats = TWL6040_FORMATS,
1401         },
1402         .capture = {
1403                 .stream_name = "Capture",
1404                 .channels_min = 1,
1405                 .channels_max = 2,
1406                 .rates = TWL6040_RATES,
1407                 .formats = TWL6040_FORMATS,
1408         },
1409         .ops = &twl6040_dai_ops,
1410 },
1411 {
1412         .name = "twl6040-ul",
1413         .capture = {
1414                 .stream_name = "Capture",
1415                 .channels_min = 1,
1416                 .channels_max = 2,
1417                 .rates = TWL6040_RATES,
1418                 .formats = TWL6040_FORMATS,
1419         },
1420         .ops = &twl6040_dai_ops,
1421 },
1422 {
1423         .name = "twl6040-dl1",
1424         .playback = {
1425                 .stream_name = "Headset Playback",
1426                 .channels_min = 1,
1427                 .channels_max = 2,
1428                 .rates = TWL6040_RATES,
1429                 .formats = TWL6040_FORMATS,
1430         },
1431         .ops = &twl6040_dai_ops,
1432 },
1433 {
1434         .name = "twl6040-dl2",
1435         .playback = {
1436                 .stream_name = "Handsfree Playback",
1437                 .channels_min = 1,
1438                 .channels_max = 2,
1439                 .rates = TWL6040_RATES,
1440                 .formats = TWL6040_FORMATS,
1441         },
1442         .ops = &twl6040_dai_ops,
1443 },
1444 {
1445         .name = "twl6040-vib",
1446         .playback = {
1447                 .stream_name = "Vibra Playback",
1448                 .channels_min = 2,
1449                 .channels_max = 2,
1450                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1451                 .formats = TWL6040_FORMATS,
1452         },
1453         .ops = &twl6040_dai_ops,
1454 },
1455 };
1456
1457 #ifdef CONFIG_PM
1458 static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
1459 {
1460         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1461
1462         return 0;
1463 }
1464
1465 static int twl6040_resume(struct snd_soc_codec *codec)
1466 {
1467         twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1468         twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1469
1470         return 0;
1471 }
1472 #else
1473 #define twl6040_suspend NULL
1474 #define twl6040_resume NULL
1475 #endif
1476
1477 static int twl6040_probe(struct snd_soc_codec *codec)
1478 {
1479         struct twl6040_data *priv;
1480         struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev);
1481         struct platform_device *pdev = container_of(codec->dev,
1482                                                    struct platform_device, dev);
1483         int ret = 0;
1484
1485         priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1486         if (priv == NULL)
1487                 return -ENOMEM;
1488         snd_soc_codec_set_drvdata(codec, priv);
1489
1490         priv->codec = codec;
1491         codec->control_data = dev_get_drvdata(codec->dev->parent);
1492
1493         if (pdata && pdata->hs_left_step && pdata->hs_right_step) {
1494                 priv->hs_left_step = pdata->hs_left_step;
1495                 priv->hs_right_step = pdata->hs_right_step;
1496         } else {
1497                 priv->hs_left_step = 1;
1498                 priv->hs_right_step = 1;
1499         }
1500
1501         if (pdata && pdata->hf_left_step && pdata->hf_right_step) {
1502                 priv->hf_left_step = pdata->hf_left_step;
1503                 priv->hf_right_step = pdata->hf_right_step;
1504         } else {
1505                 priv->hf_left_step = 1;
1506                 priv->hf_right_step = 1;
1507         }
1508
1509         priv->plug_irq = platform_get_irq(pdev, 0);
1510         if (priv->plug_irq < 0) {
1511                 dev_err(codec->dev, "invalid irq\n");
1512                 ret = -EINVAL;
1513                 goto work_err;
1514         }
1515
1516         priv->workqueue = create_singlethread_workqueue("twl6040-codec");
1517         if (!priv->workqueue) {
1518                 ret = -ENOMEM;
1519                 goto work_err;
1520         }
1521
1522         INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
1523
1524         mutex_init(&priv->mutex);
1525
1526         init_completion(&priv->headset.ramp_done);
1527         init_completion(&priv->handsfree.ramp_done);
1528
1529         priv->hf_workqueue = create_singlethread_workqueue("twl6040-hf");
1530         if (priv->hf_workqueue == NULL) {
1531                 ret = -ENOMEM;
1532                 goto hfwq_err;
1533         }
1534         priv->hs_workqueue = create_singlethread_workqueue("twl6040-hs");
1535         if (priv->hs_workqueue == NULL) {
1536                 ret = -ENOMEM;
1537                 goto hswq_err;
1538         }
1539
1540         INIT_DELAYED_WORK(&priv->hs_delayed_work, twl6040_pga_hs_work);
1541         INIT_DELAYED_WORK(&priv->hf_delayed_work, twl6040_pga_hf_work);
1542
1543         ret = request_threaded_irq(priv->plug_irq, NULL, twl6040_audio_handler,
1544                                    0, "twl6040_irq_plug", codec);
1545         if (ret) {
1546                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1547                 goto plugirq_err;
1548         }
1549
1550         twl6040_init_chip(codec);
1551
1552         /* power on device */
1553         ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1554         if (ret)
1555                 goto bias_err;
1556
1557         snd_soc_add_controls(codec, twl6040_snd_controls,
1558                                 ARRAY_SIZE(twl6040_snd_controls));
1559         twl6040_add_widgets(codec);
1560
1561         return 0;
1562
1563 bias_err:
1564         free_irq(priv->plug_irq, codec);
1565 plugirq_err:
1566         destroy_workqueue(priv->hs_workqueue);
1567 hswq_err:
1568         destroy_workqueue(priv->hf_workqueue);
1569 hfwq_err:
1570         destroy_workqueue(priv->workqueue);
1571 work_err:
1572         kfree(priv);
1573         return ret;
1574 }
1575
1576 static int twl6040_remove(struct snd_soc_codec *codec)
1577 {
1578         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1579
1580         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1581         free_irq(priv->plug_irq, codec);
1582         destroy_workqueue(priv->workqueue);
1583         destroy_workqueue(priv->hf_workqueue);
1584         destroy_workqueue(priv->hs_workqueue);
1585         kfree(priv);
1586
1587         return 0;
1588 }
1589
1590 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1591         .probe = twl6040_probe,
1592         .remove = twl6040_remove,
1593         .suspend = twl6040_suspend,
1594         .resume = twl6040_resume,
1595         .read = twl6040_read_reg_cache,
1596         .write = twl6040_write,
1597         .set_bias_level = twl6040_set_bias_level,
1598         .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1599         .reg_word_size = sizeof(u8),
1600         .reg_cache_default = twl6040_reg,
1601 };
1602
1603 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1604 {
1605         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1606                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1607 }
1608
1609 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1610 {
1611         snd_soc_unregister_codec(&pdev->dev);
1612         return 0;
1613 }
1614
1615 static struct platform_driver twl6040_codec_driver = {
1616         .driver = {
1617                 .name = "twl6040-codec",
1618                 .owner = THIS_MODULE,
1619         },
1620         .probe = twl6040_codec_probe,
1621         .remove = __devexit_p(twl6040_codec_remove),
1622 };
1623
1624 static int __init twl6040_codec_init(void)
1625 {
1626         return platform_driver_register(&twl6040_codec_driver);
1627 }
1628 module_init(twl6040_codec_init);
1629
1630 static void __exit twl6040_codec_exit(void)
1631 {
1632         platform_driver_unregister(&twl6040_codec_driver);
1633 }
1634 module_exit(twl6040_codec_exit);
1635
1636 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1637 MODULE_AUTHOR("Misael Lopez Cruz");
1638 MODULE_LICENSE("GPL");